DC-Digital large indoor-outdoor push-button controlled countdown timers are ready for concerts, speakers, speeches, meetings, production processes, sports and the like. They are easy to control, accurate, durable and highly visible. They use a 6 button system for setting, resetting to the last value, starting and stopping the timer. They come with heavy duty all aluminum (indoor), IP-66 all aluminum (Outdoor) or NEMA enclosures. Display heights from 1 inch to 30 inches, with up to 750 feet viewing distances. Customization no problem!-Contact Us